Common Heater Motor Problems

Heater Motor Assembly, Heater Motor Blower, Heater Motor Resistor

Is your vehicle’s heating system playing up? Your vehicle’s heater motor assembly is an electrical component that plays a vital role in ensuring that you stay warm as temperatures drop. It’s one of the most frequently adjusted dials and with constant stress it can ultimately fail.

This guide will help you spot some of the most common heater motor problems.

There’s No Air Coming From The Vents

The most obvious sign that there’s a problem with your heater motor assembly is a lack of air coming from the vents into the vehicle cabin. When a heater motor resistor shorts or fails power can be cut off to the heater motor blower. With no power the heating system cannot produce any air pressure.

Heater Motor Is Stuck On One Speed

If a heater motor resistor shorts or fails, you will be left with only one heat setting available. Whilst your heating system will still work its functionality will remain limited until the heater motor resistor is replaced.

Heater Motor Works Only On Certain Settings

As above, a failure of the heater motor resistor can lead to only a certain range of heat settings being available to use. Another cause of this problem is a failed blower motor switch.

Heater Motor Replacement

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